Gerardff,
I also have the low freq motor hum. This one comes and goes and I haven't yet figured out the cause. Feels like around 70-100 hz maybe.
The issue I've most suffered is a high freq sound. I don't know the freq range, but seems like is more on the order of 6-8khz or like that. It becomes more intrusive during some music playback. It will then be more pronounced for a period of time then subside again.
I have time available in the next week and will be getting an overall health checkup. At that time I'll see if there may be a systemic cause or what.
Thanks to all for your well thought out replies.
I also have the low freq motor hum. This one comes and goes and I haven't yet figured out the cause. Feels like around 70-100 hz maybe.
The issue I've most suffered is a high freq sound. I don't know the freq range, but seems like is more on the order of 6-8khz or like that. It becomes more intrusive during some music playback. It will then be more pronounced for a period of time then subside again.
I have time available in the next week and will be getting an overall health checkup. At that time I'll see if there may be a systemic cause or what.
Thanks to all for your well thought out replies.